singularity function的用法和样例：
例句
- The continuous beam can be soled by using singular functions and the method of superposition.
借助奇异函数和叠加法，导出了带有奇异函数的三弯矩方程。 - The general expression for determining deflections of the stepped shaft is developed using a method combining singularity functions with Laplace transformations.
利用奇异函数与拉普拉斯变换相结合的方法，导出了阶梯轴弯曲变形的普遍表达式。
